Yb:CaF2 — a new old laser crystal

Siebold, M.; Bock, Stefan; Schramm, U.; Xu, Bing; Doualan, Jean‐Louis; Camy, Patrice; Moncorgé, R.

doi:10.1007/s00340-009-3701-y

Cited by 162 publications

(62 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It supports amplification bandwidth of >20 nm FWHM in the multi-mJ pulse energy range [23] and sub-200 fs pulse duration. Yb:CaF 2 has high thermal conductivity, low nonlinear refractive index and long radiation lifetime.…”

Section: Introductionsupporting

confidence: 59%

“…The disadvantage of this gain medium is relatively low absorption and emission cross-sections at room temperature (namely, 0.54·10 −20 cm 2 and 0.17·10 −20 cm 2 , correspondingly [23]). Application of cryogenic cooling helps increasing the emission and absorption cross/sections by a factor of 3 [23,24] while preserving sufficient gain bandwidth for amplification of 200-fs pulses. Moreover, cryogenic cooling transforms the room-temperature quasi 3-level system of Yb:CaF 2 into a 4-level system, which improves overall efficiency.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

110-mJ 225-fs cryogenically cooled Yb:CaF_2 multipass amplifier

et al. 2016

View full text Add to dashboard Cite

Abstract:We report on a diode-pumped cryogenically cooled bulk Yb:CaF 2 12-pass amplifier delivering 110-mJ, 1030-nm pulses at a 50-Hz repetition rate. The pulses have a spectral bandwidth of 13 nm and are compressed to 225 fs pulse duration in a double reflection grating based compressor having a transmission efficiency of >90%. The measured output beam quality is M 2 <1.1. A key feature of the amplifier design is the 4f relay imaging onto the gain medium with progressive beam magnification for the mitigation of the spatial gain narrowing effect. The number of passes in the amplifier is scalable by increasing the size of imaging mirrors. In order to prevent accumulation of nonlinear phase due to self-phase modulation in air, the amplifier is enclosed into a low-vacuum case. Baltuška, "Free-space nitrogen gas laser driven by a femtosecond filament," Phys. Rev. A 86(3), 033831 (2012). 22. A.

show abstract

Section: Introductionsupporting

confidence: 59%

Section: Introductionmentioning

confidence: 99%

110-mJ 225-fs cryogenically cooled Yb:CaF_2 multipass amplifier

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Shorter pulses with a duration of 40 fs at lower output power of 1.1 W was also demonstrated in this crystal by Kerr-lens mode locking technique [9]. Another promising Yb-doped laser crystal for generating high power sub-100 fs pulses is Yb:CaF2 crystal with a thermal conductivity coefficient of 6 W/m/K and emission bandwidth of 30 nm [34,35]. The generation of 68 fs and 48 fs pulses with output powers of 2.3 W and 2.7 W using the Kerr-lens mode locking have been reported in [12] and [10], respectively.…”

Section: Resultsmentioning

confidence: 99%

Diode-pumped ultrafast Yb:KGW laser with 56 fs pulses and multi-100 kW peak power based on SESAM and Kerr-lens mode locking

2017

View full text Add to dashboard Cite

A high power sub-60 fs mode-locked diodepumped Yb:KGW laser based on hybrid action of an InGaAs quantum-dot saturable absorber mirror and Kerr-lens mode locking was demonstrated. The laser delivered a 56 fs pulse with 1.95 W of average power corresponding 450 kW of peak power. The width of the generated laser spectrum was 20.5 nm, which was near the gain bandwidth limit of the Yb:KGW crystal. To the best of our knowledge, these are the shortest pulses generated from the monoclinic double tungstate crystals (and Yb:KGW laser crystal in particular) and the most powerful in the sub-60 fs regime. At the same time, they are also the shortest pulses produced to date with the help of a quantum-dot-based saturable absorber. High power operation with a pulse duration of 90 fs and 2.85 W of average output power was also demonstrated.

show abstract

“…However, Siebold and coworkers reported that it was possible to grow the crystals avoiding any trace of Yb 2+ ions without involving Na + ions. It is just a question of growth atmosphere [20]. In view of the reasons mentioned above, the Yb-doped and Yb, Na-codoped PbF 2 single crystals were grown, the spectroscopic properties of Yb ions and the effect of Na + ions in the single crystals were investigated.…”

Section: Introductionmentioning

confidence: 99%

Crystal growth and spectroscopic characterization of Yb-doped and Yb, Na-codoped PbF2 laser crystals

Yin¹,

Yin²,

He³

et al. 2011

Journal of Alloys and Compounds

View full text Add to dashboard Cite

Yb:CaF2 — a new old laser crystal

Cited by 162 publications

References 57 publications

110-mJ 225-fs cryogenically cooled Yb:CaF_2 multipass amplifier

110-mJ 225-fs cryogenically cooled Yb:CaF_2 multipass amplifier

Diode-pumped ultrafast Yb:KGW laser with 56 fs pulses and multi-100 kW peak power based on SESAM and Kerr-lens mode locking

Crystal growth and spectroscopic characterization of Yb-doped and Yb, Na-codoped PbF2 laser crystals

Contact Info

Product

Resources

About